node of Ranvier


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Related to node of Ranvier: action potential, axon, myelin sheath, synapse

node of Ranvier

[′nōd əv rän′vyā]
(neuroscience)
The region of a local constriction in a myelinated nerve; formed at the junction of two Schwann cells.
References in periodicals archive ?
Paranodal interactions regulate expression of sodium channel subtypes and provide a diffusion barrier for the node of Ranvier.
Myelinated nerve conduction is saltatory, meaning the impulse leaps from one node of Ranvier to the next.